5 Cutter Head---Replacement razor blade heads for 5 head razors. Not fit for Skull rotary razors. Fit for Remington razors with 4 heads or above. Premium Material---Made of high quality material, durable and practical. Ergonomic Design---Shave your beard or hair by cutting without hurting your skins. Gentle and comfortable. Floating veneer technology, rotary 4D cutter head double ring blade, cutter head structure. Cleaner and faster. Easy to use & Clean---Suitable for dry and wet shaveing, with or without shaving cream. Easy to open and clean. Simply open each insividual heads and wash it with water until the hairs clean out. Pls do not soak the heads in water for long time. Made of high quality material, durable and practical.